申请人:Bezwada Rao S.
公开号:US20110130448A1
公开(公告)日:2011-06-02
The present invention relates to a compound of the formula:
R-AR—O—Y—R′
Wherein R represents one or more members selected from H, alkoxy, benzyloxy, aldehyde, halogen, carboxylic acid, —NO
2
, —NH
2
, —NHCOCH
3
, and —NH—Y—R′, which is attached directly to AR or attached through an aliphatic chain. The carboxylic acid moiety in R includes but is not limited to the following carboxylic acids: benzoic acids, cinnamic acids, ferulic acid, caffeic acid, syringic acid, salicyclic acid, vanillic acid, phenylacetic acids, phenylpropionic acids, and sinapinic acid.
-AR—O— is a biologically active phenolic moiety comprising 1 to 6 substituted or unsubstituted aryl rings that are directly bonded to each other, fused together, or joined through a linking group.
Y represents a member selected from:
—COCH
2
O— (glycolic ester moiety)
—COCH(CH
3
)O— (lactic ester moiety)
—COCH
2
OCH
2
CH
2
O— (dioxanone ester moiety)
—COCH
2
CH
2
CH
2
CH
2
CH
2
O— (caprolactone ester moiety)
—CO(CH
2
)
m
O— where m is an integer between 2-4 and 6-24 inclusive
—COCH
2
—O—(CH
2
CH
2
O)
n
— where n is an integer between 2 and 24, inclusive; and
R′ is either hydrogen or a benzyl or an alkyl group, the alkyl group being either straight-chained or branched.
The resultant functionalized phenolic compounds, used singly or in combinations, and their polymers have controllable degradation profiles, releasing the active component over a desired time range. The polymers are useful for biomaterials and biomedical devices, wherein said biologically active phenolic moiety is a residue of a phenolic compound.
本发明涉及以下式的化合物:R-AR-O-Y-R′其中R代表从H、烷氧基、苯甲氧基、醛基、卤素、
羧酸、-
NO2、-NH2、-NHCO 和-NH-Y-R′中选择的一个或多个成员,它们直接连接到AR或通过脂肪链连接。R中的
羧酸基团包括但不限于以下
羧酸:
苯甲酸、
肉桂酸、
香豆酸、
咖啡酸、
槲皮酸、
水杨酸、
香草酸、
苯乙酸、
苯丙酸和
芥子酸。-AR-O-是一个
生物活性
酚基团,包括1至6个取代或未取代的芳环,它们直接连接在一起,融合在一起或通过连接基团连接在一起。Y代表从以下成员中选择:-CO O-(
乙二醇酯基团)、-COCH(
CH3)O-(
乳酸酯基团)、-CO O O-(二氧杂环
酮酯基团)、-CO O-(
己内酯酯基团)、-CO(
CH2)mO-其中m是2-4和6-24之间的整数,-CO -O-( O)n-其中n是2至24之间的整数;以及R′是氢或苄基或烷基,烷基可以是直链或支链。所得的功能化
酚化合物,单独或组合使用,及其聚合物具有可控的降解特性,可以在所需的时间范围内释放活性成分。这些聚合物对于
生物材料和
生物医学器件非常有用,其中所述的
生物活性
酚基团是
酚化合物的残基。